ST10R172LT6 STMicroelectronics, ST10R172LT6 Datasheet - Page 57

• Manufacturer Part Number: ST10R172LT6
• Description: IC MCU 16BIT LV ROMLESS 100-TQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10R172LT6

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, SSP, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 77
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-TQFP, 144-VQFP
• Processor Series: ST10R1x
• Core: ST10
• Data Bus Width: 16 bit
• Data Ram Size: 1 KB
• Interface Type: SSP, USART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 77
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: In Transition
• Other names: 497-2044

15.3.5 CLKOUT and READY/READY
V
Parameter
CLKOUT cycle time
CLKOUT high time
CLKOUT low time
CLKOUT rise time
CLKOUT fall time
CLKOUT rising edge to
ALE falling edge
Synchronous READY
setup time to CLKOUT
Synchronous READY
hold time after CLKOUT
Asynchronous READY
low time
Asynchronous READY
setup time
Asynchronous READY
hold time
Async. READY hold time
after RD, WR high (Demulti-
plexed Bus)
DD
1) Measured between 0.3 and 2.7 volts
2) These timings assure recognition at a specific clock edge for test purposes only.
3) Demultiplexed bus is the worst case. For multiplexed bus, 2TCL should be added
= 3.3 V
to the maximum values. This adds even more time for deactivating READY.
2t
2
A
2)
and t
3)2
0.3 V
C
1
1)
refer to the following bus cycle, t
V
SS
Table 16 CLKOUT and READY/READY
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
29
30
31
32
33
34
35
36
37
58
59
60
= 0 V
CC 20
CC 5
CC 5
CC –
CC –
CC -3 +
SR 9
SR 0
SR 27
SR 9
SR 0
SR 0
Max. CPU Clock
= 50 MHz
min.
t
A
ST10R172L - ELECTRICAL CHARACTERISTICS
T
max.
20
–
–
3
3
5 +
–
–
–
–
–
0
+ 2
1
1
A
= -40°C to +85 °C
t
t
A
F
A
+
refers to the current bus cycle.
t
c
+
t
F
3
Variable CPU Clock
1/2TCL = 1 to 50 MHz
min.
2TCL
TCL – 5
TCL – 5
–
–
-3 +
9
0
2TCL + 7
9
0
0
t
A
C
L
= 50 pF
max.
2TCL
–
–
3
3
5 +
–
–
–
–
–
TCL - 10
+ 2
1
1
t
t
A
A
+
t
c
+
t
F
3
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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